Home / 3,436.25-5,155.26-1,127.77

Finding the Fourth Proportional to 3,436.25, 5,155.26 and 1,127.77

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Solution

The fourth proportional to 3,436.25, 5,155.26 and 1,127.77 is: 1,691.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,436.25 : 5,155.26 = 1,127.77 : x
  2. Step 2: Convert to fraction form
    3,436.25/5,155.26 = 1,127.77/x
  3. Step 3: Cross multiply
    3,436.25x = 5,155.26 × 1,127.77
  4. Step 4: Simplify right side
    3,436.25x = 5,813,941.93
  5. Step 5: Solve for x
    x = 5,813,941.93/3,436.25
  6. Step 6: Final answer
    x = 1,691.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.